2660075707 has 4 divisors (see below), whose sum is σ = 2679492456. Its totient is φ = 2640658960.

The previous prime is 2660075653. The next prime is 2660075713. The reversal of 2660075707 is 7075700662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660075707 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660075707.

It is not an unprimeable number, because it can be changed into a prime (2660075797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9708169 + ... + 9708442.

It is an arithmetic number, because the mean of its divisors is an integer number (669873114).

Almost surely, 2^2660075707 is an apocalyptic number.

2660075707 is a deficient number, since it is larger than the sum of its proper divisors (19416749).

2660075707 is a wasteful number, since it uses less digits than its factorization.

2660075707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416748.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 2660075707 is about 51575.9217755728. The cubic root of 2660075707 is about 1385.5791271041.

The spelling of 2660075707 in words is "two billion, six hundred sixty million, seventy-five thousand, seven hundred seven".